EP0137507A2 - Förderbehälter für Feststoffe - Google Patents

Förderbehälter für Feststoffe Download PDF

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Publication number
EP0137507A2
EP0137507A2 EP84112231A EP84112231A EP0137507A2 EP 0137507 A2 EP0137507 A2 EP 0137507A2 EP 84112231 A EP84112231 A EP 84112231A EP 84112231 A EP84112231 A EP 84112231A EP 0137507 A2 EP0137507 A2 EP 0137507A2
Authority
EP
European Patent Office
Prior art keywords
container
flap
discharge opening
plate
fastened
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84112231A
Other languages
English (en)
French (fr)
Other versions
EP0137507A3 (en
EP0137507B1 (de
Inventor
Olav Skyllingstad
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Norsk Hydro ASA
Original Assignee
Norsk Hydro ASA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Norsk Hydro ASA filed Critical Norsk Hydro ASA
Priority to AT84112231T priority Critical patent/ATE54904T1/de
Publication of EP0137507A2 publication Critical patent/EP0137507A2/de
Publication of EP0137507A3 publication Critical patent/EP0137507A3/en
Application granted granted Critical
Publication of EP0137507B1 publication Critical patent/EP0137507B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/34—Emptying devices
    • B65G65/40—Devices for emptying otherwise than from the top
    • B65G65/48—Devices for emptying otherwise than from the top using other rotating means, e.g. rotating pressure sluices in pneumatic systems
    • B65G65/4809—Devices for emptying otherwise than from the top using other rotating means, e.g. rotating pressure sluices in pneumatic systems rotating about a substantially vertical axis
    • B65G65/4836—Devices for emptying otherwise than from the top using other rotating means, e.g. rotating pressure sluices in pneumatic systems rotating about a substantially vertical axis and moving material over a stationary surface, e.g. sweep arms or wheels

Definitions

  • the present invention relates to transportable containers for transport and storage of solids.
  • Several containers can be stacked upon each other, and this is preferably obtained by securing each container to a permanently arranged frame having means for lifting by crane and/or fork trucks.
  • The.upper part of the container can be cylindrical or polygonal, while its lower part is conical or funnel-formed.
  • the inlet and outlet means can be closed by flanges or the like and preferably such that neither water nor air can penetrate into the container.
  • Containers of the above mentioned type have been used in connection with transport of semibulk amounts to ships and oil platforms and are excpected to get increased importance for such transport.
  • the usual requirement is that the container shall be designed such that is is selfdischarging. This implies among other things that the diameter of the discharge opening has to be sufficiently large to avoid formation of a stable bridge of solids over the opening during discharge. Accordingly, one gets a critical diameter for the discharge opening, and this one will depend on the solid in question. Finely ground cohesive particles might require unpractically large discharge openings, and therefore it can be necessary to equip the container with means for vibration or fluidization in order to get the container emptied.
  • Such transportabel containers comprise a sealing problem which increases by increasing size of the container's discharge opening. Especially if the container shall be used on oil platforms and has to be transported thereto on deck of a supply vessel, it is absolutely necessary that the container's bottom is waterproof. Usually this is obtained by application of a flap which is removed during emptying of the solids into a special discharge means. But if the discharge opening is large, it will be difficult to obtain complete sealing, and during discharge it will be cumberous to operate a flap weighed down by the complete content of the container.
  • a special problem related to equipment on oil platforms is that it shall have as low weight as possible at the same time as it shall be robust and can endure the strain it is exposed to, also during transport to the platform.
  • the object of the present invention was to arrive at a container which was light and robust at the same time as it was waterproof, and that it could be emptied by accurate dosage of particle-formed material over a wide capacity range.
  • the inventor found that in stead of using a discharge flap which covered the complete opening of the container, one could cover the discharge opening with a bottom plate on which one placed a scraping device which could be connected to a drive shaft.
  • a small opening which could be closed by a movable flap.
  • the flap was easy to operate during discharge as it hardly was pressed down by particle material in the container. This low pressure on the flap could for instance be obtained by placing a screen inside the container and over the discharge opening in the bottom plate.
  • the discharge speed could be regulated by regulating the speed on the scraping device and/or the size on the area of the discharge opening by moving the flap..
  • Figure 1 shows the lower part of a container (1) according to the invention, and in this embodiment the lower part is conical, having a circular bottom covered by a bottom plate (2) fastened to the container (1) by a flange (3).
  • the container (1) is shown partly filled with a smaller amount of particle-formed material (11).
  • On the plate (2) there is arranged a scraping device having spokes (4) with substantially the same radius as the total opening of the container (1).
  • the spokes (4) are fastened to a central axis (9) which goes through the centre of the plate (2) and can be connected to driving means (not shown).
  • FIG. 2 shows the container's (1) bottom viewed from above.
  • the scraping device is here shown with eight spokes (4) which can be in the form of simple blades or have conical or other suitable cross-section.
  • the discharge opening (8) is shown retangular, and its effective discharge area can be regulated by moving the flap (6). When the flap (6) is pulled all the way to the right on the figure, one will have maximum discharge area for the opening (8). Shifting of the flap (6) is preferably carried out manually and the flap can be permanently positioned, defining a predetermined opening for each discharge operation. In the shown position the flap (6) gives a waterproof closure of the opening (8).
  • Figure 3 shows a cross-section A-A along the bottom plate (2) with the discharge opening (8) which is completely covered by the ridge shaped screen (5), the lower part of which terminates just over the spokes (4), and which is shown here as a cut. Under the opening (8) there is arranged a movable flap (6) which is kept in place by guidances (7).
  • Figure 4 shows a bottom plate (2) seen from below with discharge opening (8) which can be closed completely by a sector-formed flap (6) which can be rotated around the pin (10) and thereby regulate the area of the effective discharge opening.
  • the flap (6) can be locked in any desired position and will give waterproof sealage of the opening (8) in the shown position.
  • This example shows how the particle-formed material (11). which is transported in the container, can be discharged and dosed out of the container.
  • the container is placed with its legs (12) on a plane base or in openings having somewhat larger cross-section than the legs (12) and such that the container (1) is locked tight, and at the same time the shaft (9) can be connected to some driving means which brings the spokes (4) in rotation, whereby the particles (11) are transported towards the opening (8).
  • the shaft (9) can be connected to some driving means which brings the spokes (4) in rotation, whereby the particles (11) are transported towards the opening (8).
  • the discharge speed is regulated by varying the revolution per minute of the scraping device and/or by regulating the size of the discharge opening (8).
  • the particles (11) can be charged downwards to the conveyor or the like using suitable weighing means which can be connected to the adjustable discharge means, whereby very accurate dosage of the material out of the container (1) is obtained.
  • the scraping device is preferably in form of a wheel having several spokes as shown on figure 2. But it can of course be formed otherwise as long as it functionally works in the same way, that means the particles will be transported towards the opening (8).
  • the discharge opening (8) can have different shapes, for instance a series of holes which all can be covered by a flap (6).
  • the present invention has also given a container having a large bottom opening, whereby formation of stable bridges of particle-formed material during discharge is avoided, at the same time as the opening which requires special sealing means is small and simple to close such that the container becomes waterproof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Packages (AREA)
  • Refuse Collection And Transfer (AREA)
  • Thermally Insulated Containers For Foods (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Glass Compositions (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Relays Between Conveyors (AREA)
  • Forging (AREA)
EP84112231A 1983-10-11 1984-10-11 Förderbehälter für Feststoffe Expired - Lifetime EP0137507B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84112231T ATE54904T1 (de) 1983-10-11 1984-10-11 Foerderbehaelter fuer feststoffe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO833692A NO153428C (no) 1983-10-11 1983-10-11 Transportable beholder for faststoff.
NO833692 1983-10-11

Publications (3)

Publication Number Publication Date
EP0137507A2 true EP0137507A2 (de) 1985-04-17
EP0137507A3 EP0137507A3 (en) 1986-12-03
EP0137507B1 EP0137507B1 (de) 1990-07-25

Family

ID=19887284

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84112231A Expired - Lifetime EP0137507B1 (de) 1983-10-11 1984-10-11 Förderbehälter für Feststoffe

Country Status (5)

Country Link
EP (1) EP0137507B1 (de)
AT (1) ATE54904T1 (de)
DE (1) DE3482809D1 (de)
DK (1) DK154885C (de)
NO (1) NO153428C (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001363A1 (en) * 1984-06-25 1987-03-12 MELLGREN, Asbjo^/rn Device for transport and dosed feeding of powdery goods and materials
AU581457B2 (en) * 1985-08-26 1989-02-23 Knut Bakke Device for transport and dosed feeding of powdery goods and materials
CN114538130A (zh) * 2020-11-19 2022-05-27 黄建 新型阶段可控投料器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2280166A (en) * 1939-08-12 1942-04-21 Redler Conveyor Co Conveying apparatus
CH599884A5 (en) * 1976-12-13 1978-06-15 Wirz Ernst Ag Kipper & Maschin Centrifuged sewage sludge vessel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001363A1 (en) * 1984-06-25 1987-03-12 MELLGREN, Asbjo^/rn Device for transport and dosed feeding of powdery goods and materials
AU581457B2 (en) * 1985-08-26 1989-02-23 Knut Bakke Device for transport and dosed feeding of powdery goods and materials
CN114538130A (zh) * 2020-11-19 2022-05-27 黄建 新型阶段可控投料器

Also Published As

Publication number Publication date
DE3482809D1 (de) 1990-08-30
EP0137507A3 (en) 1986-12-03
DK483984D0 (da) 1984-10-10
NO153428C (no) 1986-03-19
NO153428B (no) 1985-12-09
DK154885B (da) 1989-01-02
DK154885C (da) 1989-05-29
NO833692L (no) 1985-04-12
EP0137507B1 (de) 1990-07-25
DK483984A (da) 1985-04-12
ATE54904T1 (de) 1990-08-15

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